<textarea id="Content"  name="Content" style="display:none"></textarea>

<iframe ID="Editor" name="Editor" src="index.html?ID=content" frameBorder="0" marginHeight="0" marginWidth="0" scrolling="No" style="height:805px;width:100%"></iframe>

<script>
//parent.Editor.document.form1.abc.value="123";
//+="<img src></img>123";
//content.document.selection.createRange().pasteHTML('<img src=/2006/images/logo.gif></img>');
</script>
<INPUT TYPE="button" onclick=v>